Generate Keys For Openwrt Openvpn

Creating certificates and keys for OpenVPN server with EasyRSA on MacOS This guide covers how to create certificates and keys for OpenVPN server and clients using the EasyRSA tool on MacOS. The instructions are very similar for most flavours of linux such as Ubuntu once the correct packages are installed (e.g. On Ubuntu: apt-get install openvpn easy-rsa ).

  1. Generate Keys For Openwrt Openvpn Windows 7
  2. Generate Keys For Openwrt Openvpn Download
  3. Generate Keys For Openwrt Openvpn Server
  4. Openwrt Openvpn Client Log

In the examples below, we will setup our own CA and generate self signed certificates using a Linux host. The procedure of generating the certificates is simular for the Windows version of OpenVPN. From the Linux host, copy the certificates/keys files to /jffs/etc/openvpn on the server. I have OpenVPN set up and working fine, however I want to add a new client key to it. Going off of the documentation, I issued the following commands with the following output on a CentOS box. A number of the OpenVPN server setup guides require you to generate your own certificates and keys on your client device. Here, we will describe the steps required to generate these credential files. We have an easy to use tool available called OpenVPN Configuration Generator available for for Mac, Ubuntu and Windows which allow you to generate a server and client configs very. Jul 27, 2017  Streisand sets up a new server running your choice of WireGuard, OpenConnect, OpenSSH, OpenVPN, Shadowsocks, sslh, Stunnel, or a Tor bridge. It also generates custom instructions for all of these services. At the end of the run you are given an HTML file with instructions that can be shared with friends, family members, and fellow activists.

Provide access to local services/servers/applications from outside of your home

Why do we need this?

Ever wondered how could you access services or applications such as plex media server or radarr, sonarr, freenas storage that you are hosting on your local Lan from outside your home?

The answer is yes! You could setup a local OpenVPN server ready to connect you to your local services from outside your home from anywhere in the world! All you need is an internet connection!

“Connect to your local services from outside your home using OpenVPN”

In this guide, I will take you through step by step how to set it up using OpenVPN Server.

Generate

Requirements:

All you need is a good router with OpenWrt running. I am using the Linksys WRT3200ACM router.

You also need to make sure that you have your duckdns setup and a cron job is running either on your FreeNas box to keep updating the IP address or you will need to set it up on the Router as well. In my case I don’t need to do it on my router because I have set it up somewhere else on my servers.

In my setup above, I have a private domain that has a CNAME pointing to my duckdns server. In this case, I don’t need to use my WAN IP address and will be using my domain name to connect via a client to the server. It’s a following 3 stage process:

Stage 1 is to install packages via ssh into your router and then generating server ca certificates and keys

Stage 2 is to setup router interfaces and firewalls

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Stage 3 is to setup OpenVPN Configs

Stage 4 is to generate client certificates and keys

Stage 5 is to download these files and setup on your local devices.

“DuckDNS will help us to keep track of our WAN IP address.”

Stage 1 – ssh into your router and install the following packages:

Just ssh into your router using root.

Now install the following packages:

Generate Keys For Openwrt Openvpn Windows 7

Generate server keys/certs using easy-rsa:

Generate

Generate Keys For Openwrt Openvpn Download

It is recommended that you move your easy-rsa files from the default locations so that you don’t accidentally override those in case of system update.

Now to generate the certificates

for the server and client(s). We need to start by editing a few lines in the /etc/easy-rsa/vars file.

Keep the key size to at least 2048 bits as default. A key size of 4096 is preferred, but your client has to support it, plus it adds additional encryption overhead.

Fill out other info as appropriate:

Next, create your certificate authority, Diffie-Hellman parameters (this will take time depending on your router hardware…it took about 10+ minutes on my router), and certificates.

Stage 2 – Setup Firewall and your network interface at the router:

Generate Keys For Openwrt Openvpn Server

We need to configure a new network interface and assign a firewall zone to it. Paste the following in your ssh session terminal:

This will create a new LAN interface called vpn0. Setup the Firewall and reload network and firewalls.

Enable packet forwarding

We also need to check if packet forwarding is enabled (it should be by default).

If it is not enabled, edit the above file and set the value to 1.

Step 3 – Setup the OpenVPN Server config:

See the comments in the commands below for more information. Just run the following commands in the ssh terminal connected to your router.

Be sure to start and enable the OpenVPN server.

Next, look at the logfile at /tmp/openvpn.log. With any luck, you should see Initialization Sequence Completed, showing that your OpenVPN server is up!

This means that we have successfully setup our OpenVPN server.

Stage 4 – Generate your client certificates, keys, ovpn files

You will need the passphrase if you setup during the ca.crt file generation. You will have to repeat this for every device configs you wish to use to connect back to your home OpenVPN Server.

Step 5 – Download client files and put them into your devices

Finally we could download these files using FileZilla by connecting to your router and copying these files over to your devices. The sample OVPN file looks like this:

Router Port Forwarding

Openwrt Openvpn Client Log

Open up the port 1194 on your router and forward it to your VPN0 interface.

That’s it!